English: Category:Blues harpists. The Richter-tuned harmonica, or 10-hole harmonica (in Asia) or blues harp (America), is the most widely known type of harmonica. It is a variety of diatonic harmonicas, with ten holes which offer the player 19 notes (10 holes times a draw and a blow for each hole minus one repeated note) in a three octave range.
See also: Category:Harmonica players